2ACUT-482015002-854R/C Car Series

27.145MHz Transmitter Block Diagram IC1

SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO.,LTD. Address: RM.202-204, BLOCK 2, YAQIAN, ZHONGSHAN ROAD SOUTH, CHENGHAI, SHANTOU CITY, GUANGDONG, CHINA 2014-06-30 To whom it may concern, Letter of Agency I, an officer of SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO., LTD. do hereby authorize Intertek Testing Services (Mr. Shawn Xing / Billy Li) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under Part 15 and/or Part 95 of the FCC Rules until further notice. I further certify that no party (as defined in §1.2002(b) of CFR 47, 2007) to this application, including myself, is subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C., 862. Regards, David Wu MANAGER

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Label Artwork and Location SIZE: 60mm (W) x 20mm (H)

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Technical description Description Function Component Antenna Transmit modulated RF signal ANT Filter Suppression of spurious emissions L1, L2, C1, C2, C3 RF IC Generate code signal to modulator IC1 Oscillator Generate 27.145 MHz carrier X1, Q2 RF power amplifier and modulator Modulate the carrier and amplify the modulated RF signal Q1 Antenna Type: Integral antenna with plastic enclosure Antenna Gain: 0dBi Modulation Type: Pulse modulation The nominal conducted output power specified: -28.00dBm (+/- 3dB) The nominal radiated output power (e.r.p) specified: -30. 15dBm (+/- 3dB)

1 INTERTEK TESTING SERVICES Analysis Report The equipment under test (EUT) is a portable transmitter for a R/C Car Series operating at 27.145 MHz which is controlled by a crystal. The EUT is powered by one 9.0V 6F22 size battery. For more detail information pls. refer to the user manual. Antenna Type: Integral antenna with plastic enclosure Antenna Gain: 0dBi The nominal conducted output power specified: -28.00dBm (+/- 3dB) The nominal radiated output power (e.r.p) specified: -30.15dBm (+/- 3dB) Modulation Type: Pulse modulation According to the KDB 447498: The worst-case peak radiated emission for the EUT is 66.3dBμV/m at 3m in the frequency 27.145MHz The EIRP = [(FS*D) ^2 / 30] mW= -28.93dBm The ERP = EIRP – 2.15 = -31.08 dBm which is within the production variation. The maximun conducted output power specified is -25dBm =0.003mW The source- based time-averaging conducted output power = 0.003* Duty Cycle mW < 0.1 mW (Duty Cycle <100%) The SAR Exclusion Threshold Level for 27.145MHz when the minimum test separation distance is < 50mm: = 474 * [1 + log(100/f(MHz)]/2 = 371.2 mW Since the source-based time-averaging conducted output power is well below the SAR low threshold level, so the EUT is considered to comply with SAR requirement without testing. Transmitter Duty Cycle Calculation The duration of one cycle = 18.48ms Effective period of the cycle = 540μs x 10 + 1.56ms x 4 = 11.64ms DC = 11.64ms / 18.48ms = 0.6299 or 62.99% FCC ID: 2ACUT-482015002-854

ZHT-282T ZHT-275 C3_282T 150p C4220p C5220p C356p Q1 9014 Q2 9014 R2_282T 2.2k Ω R7100 Ω R322k Ω LED C4_282T 100nF SW- 进 SW- 退 SW- 左 SW- 右 9V 27.145MHz X1 R1_282T 300k Ω IC1TX-2S R2820k Ω R133k Ω R5 33k Ω L1 8.2μH 27MHz 发射电路原理图 (9v) L32.2 μ H L42.2 μ H R3_282T 330 Ω D1 3.3V C1 100nF 1 2 K1 C2_282T 150p L2 0.68μH C1_282T 47p 27MHz Transmitter Circuit ANT 27.145MHz

Ref 10 dBmAtt 20 dB * A * Center 27.1443 MHz10 ms/ 3DB RBW 3 MHz VBW 3 MHz SWT 100 ms SGL *1 PK VIEW -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 Date: 30.MAY.2014 09:45:14 Ref 10 dBmAtt 20 dB * A * RBW 3 MHz VBW 3 MHz 3DB Center 27.1443 MHz3 ms/ SWT 30 ms SGL *1 PK VIEW -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1 Marker 1 [T1 ] -8.82 dBm 3.360000 ms 1 Delta 1 [T1 ] 0.03 dB 18.480000 ms Date: 30.MAY.2014 09:45:58 Ref 10 dBmAtt 20 dB * A * RBW 3 MHz VBW 3 MHz 3DB Center 27.1443 MHz3 ms/ SWT 30 ms SGL *1 PK VIEW -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1 Marker 1 [T1 ] -8.82 dB m 3.360000 ms 1 Delta 1 [T1 ] 0.02 dB 1.560000 ms Date: 30.MAY.2014 09:46:18 Ref 10 dBmAtt 20 dB * A * RBW 3 MHz VBW 3 MHz 3DB Center 27.1443 MHz3 ms/ SWT 30 ms SGL *1 PK VIEW -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1 Marker 1 [T1 ] -8.81 dBm 11.580000 ms 1 Delta 1 [T1 ] -0.02 dB 540.000000 μs Date: 30.MAY.2014 09:46:49

A Att 20 dB * Ref 10 dBm Start 26.96 MHzStop 27.28 MHz32 kHz/ * 3DB RBW 10 kHz SWT 5 ms * VBW 30 kHz 1 PK VIEW -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1 Marker 1 [T1 ] -7.92 dBm 27.144320000 MHz 2 Delta 2 [T1 ] -41.31 dB -184.320000000 kHz 3 Delta 3 [T1 ] -39.64 dB 135.680000000 kHz Date: 30.MAY.2014 09:43:25

• The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to copy or distribute this report. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results referenced from this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. TRF No.: FCC 15C_TX_b Intertek Testing Services Shenzhen Ltd. Kejiyuan Branch 6F, D Block, Huahan Building, Langshan Road, Nanshan District, Shenzhen, P. R. China Tel: (86 755) 8601 6288 Fax: (86 755) 8601 6751 SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO., LTD Application For Certification FCC ID: 2ACUT-482015002-854 R/C Car Series Model: 482015002 Additional Model: DC854 Transmitter Report No.: GZHH00153810-001 We hereby certify that the sample of the above item is considered to comply with the requirements of FCC Part 15, Subpart C for Intentional Radiator, mention 47 CFR [ 10-1-13] Prepared and Checked by: Approved by: Sign on file Jimmy Wen Engineer Andy Yan Senior Project Engineer Date: August 14, 2014 INTERTEK TESTING SERVICES Report No.:GZHH00153810-001 FCC ID: 2ACUT-482015002-854 TRF No.: FCC 15C_TX_b i GENERAL INFORMATION SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO., LTD MODEL: 482015002 FCC ID: 2ACUT-482015002-854 Grantee: SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO., LTD Grantee Address: RM.202-204, BLOCK 2, YAQIAN, ZHONGSHAN ROAD SOUTH, CHENGHAI, SHANTOU CITY, China Contact Person: David Wu Tel: 86-754-85810823 Manufacturer: SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO., LTD Manufacturer Address: RM.202-204, BLOCK 2, YAQIAN, ZHONGSHAN ROAD SOUTH, CHENGHAI, SHANTOU CITY, China Model: 482015002 Type of EUT: Transmitter Description of EUT: R/C Car Series Serial Number: N/A FCC ID : 2ACUT-482015002-854 Date of Sample Submitted: June 11, 2014 Date of Test: August 4, 2014 Report No.: GZHH00153810-001 Report Date: August 14, 2014 Environmental Conidtions: Temperature: +10 to 40°C Humidity: 10 to 90% INTERTEK TESTING SERVICES Report No.:GZHH00153810-001 FCC ID: 2ACUT-482015002-854 TRF No.: FCC 15C_TX_b ii SUMMARY OF TEST RESULT SHANTOU CHENGHAI GUANHUA IMPORT AND EXPORT TRADE CO., LTD MODEL: 482015002 FCC ID: 2ACUT-482015002-854 TEST SPECIFICATION REFERENCE RESULTS Maximum Peak Output Power 15.247(b), (c) / RSS-210 A8.4 N/A Hopping Channel Carrier Frequencies Separation (for 2.4GHz Digital) 1 5.247(e) / RSS-210 A8.1 N/A 20dB Bandwidth of the Hopping Channel 15.247(a) / RSS-210 A8.1 N/A Number of Hopping Frequencies 15.247(e) / RSS-210 A8.1 N/A Average Time of Occupancy of Hopping Frequency 15.247(e) / RSS-210 A8.1 N/A Anteann Conducted Spurious Emissions 15.247(d) / RSS-210 A8.5 N/A Radiated Spurious Emissions 15.247(d) / RSS-210 A8.5 N/A RF Exposure Compliance 15.247(i) / RSS-Gen 5.5 N/A Transmitter Power Line Conducted Emissions 15.207 / RSS-Gen 7.2.2 N/A Transmitter Field Strength (for 27MHz) 15.227 / RSS-310 3.8 Pass Transmitter Field Strength (for 40MHz) 15.229 / RSS-210 A2.7 N/A Transmitter Field Strength, Bandwidth and Timing Requirement (for Remote Control) 1 5.231(a) / RSS-210 A1.1.1 N/A Transmitter Field Strength, Bandwidth and Timing Requirement (for 433MHz) 1 5.231(e) / RSS-210 A1.1.5 N/A Transmitter Field Strength and Bandwidth Requirement(for 88-108MHz) 15.239 / RSS-210 A2.8 N/A Transmitter Field Strength and Bandwidth Requirement(for 902- 928MHz or 2.4GHz) 15.249 / RSS-210 A2.9 N/A Transmitter Field Strength and Bandwidth Requirement (for 49MHz) 1 5.235 / RSS-310 3.9 N/A Receiver / Digital Device Radiated Eissions 15.109 / ICES-003 N/A Digital Device Conducted Emissions 15.107 / ICES-003 N/A Note: 1. The EUT uses an Integral antenna which, in accordance to section 15.203, is considered sufficient to comply with the pervisions of this section. 2. Pursuant to FCC part 15 Section 15.215(c), the 20 dB bandwidth of the emission was contained within the frequency band designated (mentioned as above) which the EUT operated. The effects, if any, from frequency sweeping, frequency hopping, other modulation techniques and frequency stability over excepted variations in temperature and supply voltage were considered. INTERTEK TESTING SERVICES Report No.:GZHH00153810-001 FCC ID: 2ACUT-482015002-854 TRF No.: FCC 15C_TX_b iii Table of Contents 1.0 General Description ....................................................................................... 1 1.1 Product Description .......................................................................................... 1 1.2 Related Submittal(s) Grants.............................................................................. 1 1.3 Test Methodology ............................................................................................. 1 1.4 Test Facility ...................................................................................................... 1 2.0 System Test Configuration ............................................................................ 2 2.1 Justification .........................................................................................…

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